Occasionally when I alt-tab out of the game and go back in RVGL's GPU usage jumps up to 100%. I have no idea what causes this, as it happens seemingly at random. Usually it goes away after tabbing in and out a few times.

Sorry if this description is a bit vague, but it's all I have '^^. This has happened for quite a while (across multiple patches), but it was infrequent enough for me to be lazy and ignore it. It's getting kinda annoying though, so hopefully it can be fixed. If I need to send any logs or system specs, just ask.

Actually, it seems like I celebrated prematurely :­(. The problem is still here:
(I managed to take this screenshot by having task manager open in the background and immediately taking a screenshot after alt-tabbing)